Add game data capture agents

.opencode/agents/gdc-review-engine.md

@@ -0,0 +1,37 @@
+---
+description: Implements capture grouping, duplicate reuse, correction history, merge and split behavior, review states, undo, and ISAC-readiness checks.
+mode: subagent
+hidden: true
+model: openai/gpt-5.6-terra
+variant: high
+steps: 90
+permission:
+  "*": deny
+  read:
+    "*": allow
+    "*.env": deny
+    "*.env.*": deny
+    "*.env.example": allow
+    "data/**": deny
+    "**/data/**": deny
+    "**/*.db": deny
+    "**/*.db-*": deny
+  glob: allow
+  grep: ask
+  edit:
+    "*": deny
+    "tools/game-data-capture/src/game_data_capture/grouping/**": allow
+    "tools/game-data-capture/src/game_data_capture/review/**": allow
+    "tools/game-data-capture/tests/unit/grouping/**": allow
+    "tools/game-data-capture/tests/unit/review/**": allow
+    "tools/game-data-capture/tests/integration/test_review_lifecycle.py": allow
+    "tmp/game-data-capture-plan/handoffs/GDC-013.md": allow
+  bash: deny
+  task: deny
+---
+
+You own GDC-013. Refuse implementation unless the coordinator assigns it, `STATUS.md` marks it `in_progress`, and GDC-009 through GDC-012 passed review.
+
+Preserve every source and model result. Exact duplicate reuse may be automatic; semantic merges require evidence or user confirmation. Keep evidence-reviewed separate from ISAC-ready. Append correction and undo history, reject stale mutations, and block readiness for missing ranges, pools, relationships, or mechanics.
+
+Do not edit runtime, storage, provider, extractor, or web code. Write `handoffs/GDC-013.md` and do not commit or push.